Golf balls have all those little dents so that they fly faster through the air. So of course someone had to ask, what if we put little dimples all over a car? Mythbusters tested 3 Ford Taurus cars: one normal car, one car covered in smooth clay, and one covered in clay with 1,082 dimples scooped out. While the smooth cars drove 26 miles on a gallon of gas, the dimpled car drove almost 30 miles! On a long trip that saves a lot of gas, if you’re okay with driving a funny-looking car.

*Wee ones:* What shape is a golf ball?

*Little kids:* Golf balls don’t all have the same numbers of dimples. Which has more, a ball with 20 dimples or a ball with 30 dimples? *Bonus:* If the dimpled car could drive 30 miles on a gallon of gas while the regular car drove only 26 miles, how much farther could the dimpled car drive?

*Big kids:* If you helped smash the dimples into a test car, and you can smash 10 dimples each minute, about how long would it take you to make the 1,082 dimples? *Bonus:* If your car tank holds 20 gallons of gas, and you’ll drive 4 miles farther on each gallon after banging up your car, how many more miles do you get out of every tank of gas?

Answers:*Wee ones:* A circle, or if you’re talking about 3-D (chunky) shapes, it’s a “sphere.”

*Little kids:* The 30-dimple ball. *Bonus:* 4 miles farther.

*Big kids:* 108 minutes. *Bonus:* 80 more miles!